[Haskell-beginners] Top beginner mistakes
bieffe62 at gmail.com
Thu Mar 5 13:13:34 EST 2009
2009/3/4 7stud <bbxx789_05ss at yahoo.com>
> Here are my top three:
> 3) Not putting parentheses around arguments of the form x:xs
> dosomething x:xs = head xs
I have a variation here:
function  = ...
function [x:xs] = ...
Another of mine is the classical:
print function arguments -- or variations
but I finally learned to use '$' here .
> In all three cases, the error messages don't help spot the problem.
> I think that part of the problem is that haskell syntax is powerful but
terse, and therefore is not easy for a compiler to guess the intensions in
For instance, in any other language the expression 'map f' would give the
error "missing second parameter", while in haskell could be a partial
However, some of ghc messages could probably be made more
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the Beginners